Wait a second!
More handpicked essays just for you.
Ati the respiratory system quizlet
Ati the respiratory system quizlet
Ati the respiratory system quizlet
Don’t take our word for it - see why 10 million students trust us with their essay needs.
More handpicked essays just for you.
Ati the respiratory system quizlet
Ati the respiratory system quizlet
Ati the respiratory system quizlet
Don’t take our word for it - see why 10 million students trust us with their essay needs.
Recommended: Ati the respiratory system quizlet
Macromolecule test 1 differs from the second chart by testing non-reducing sugars in the first test and proteins in the second. In depth the lab required to heat the sample at times, mix them, and add them to a warm water bath of 100 Celsius. The following graphs were obtained by following the guidelines within the
Sucrase activity increases with increasing sucrose concentration Materials and Methods Effect of pH on Enzyme Activity 1. Dependent Variable amount of product (glucose and fructose) produced 2. Independent Variable pH 3. Controlled Variables temperature, amount of substrate (sucrose) present, sucrase + sucrose incubation time Effect of Temperature on Enzyme Activity 1.
I predicted that the control would have a higher alcohol content than the experimental since beta and alpha amylase are working together. Since only Alpha-Amylase worked in the experimental, there was probably bigger carbohydrates present in the flask, therefore, there was a lower alcohol percentage since yeast can’t digest bigger sugars. b. My results also matched my prediction regarding mean reducing carbohydrate levels during the mashing process between the control and the experimental. My prediction stated that there would be less reducing carbohydrate ends in the experimental, which was proven in the data table.
B-galactosidase breaks down the disaccharide lactose into simple sugars glucose and galactose. However, glucose is a colorless compound hence it has to be substituted with a compound that is detectable by a visible color change. Hence,
Cheaper and more efficient techniques of production have led to ever increasing the amount of sugar
The Effect of Sugar Concentration on CO2 Production by Cellular Respiration in Yeast Introduction In this lab, our main focus was to find how sugar concentration affect yeast respiration rates. This was to simulate the process of cellular respiration. Cellular respiration is the process that cells use to transfer energy from the organic molecules in food to ATP (Adenosine Tri-Phosphate). Glucose, CO2, and yeast (used as a catalyst in this experiment) are a few of the many vital components that contribute to cellular respiration.
Both lactose and maltose are complex carbohydrate macromolecules. 7. What is the role of starch and glycogen? a. Starch and glycogen are both storage molecules, they are designed to be stockpiled and saved until the organism needs them. Once needed these molecules can be broken down into glucose and used towards ATP production.
Mr Mass = 20g x 0.03 = 0.6 0.6÷34.02 = 0.017 moles Conclusion: What was learned in this lab is temperature rises when a hydrogen peroxide solution in water is activated by yeast. The hypothesis is supported by the data. Referring to what was stated, the Hydrogen peroxide solution did change based yeast that activated the solution, many were similar in temperature. This is because the yeast decomposes the hydrogen peroxide into oxygen and water.
Only the heated solution caused the balloon to expand, suggesting that the increase in temperature is linked to the balloon’s expansion. Furthermore, as the solution was only heated to 60°C, no water vapor was produced to fill the balloon, suggesting the gas was produced solely by the yeast. Thus, the yeast reacted to the heat, supporting the claim that yeast can respond and is alive. Sources of error in this experiment could have included incorrect preparation of solutions. The solutions of yeast, water, and sugar, could have been measured incorrectly causing the control and experimental solutions to be different.
Joshua Miller 12/18/17 Fermentation Lab report Introduction The term fermentation refers to the chemical breakdown of a substance by bacteria, yeasts, or other microorganisms, typically involving effervescence and the giving off of heat (wikipedia). Sugars are converted to ethyl alcohol when fermentation happens. In this experiment we determined if yeast cells undergo fermentation when placed in a closed flask with no oxygen. Glucose and yeast are mixed together in a closed flask and allowed to incubate for about one hour.
This is the second step. During fermentation, from a rough dense mass lacking extensibility and with poor gas holding properties, the dough slowly changes into a smooth, extensible dough with good gas holding properties. As the yeast cells grow, the gluten protein pieces clump together to form networks. Hence, the alcohol and carbon dioxide are formed from the breakdown of carbohydrates that are found naturally in the flour. Enzymes present in yeast and flour also help to speed up this reaction.
For example, fermentation occurs in yeast in order to gain energy by transforming sugar into alcohol. Fermentation is also used by bacteria, they convert carbohydrates into lactic acid. Ethanol fermentation is done by yeast and certain bacteria, when pyruvate is separated into ethanol and carbon dioxide. Ethanol fermentation has a net chemical equation: C6H12O6 (glucose) > 2C2H5OH (ethanol) + 2CO2 (carbon dioxide). This process of ethanol fermentation is used in the making of wine, bread, and beer.
Regarding the digestion and absorption, fructose differs from glucose because it does not stimulate insulin secretion or enhance leptin production. The key of insulin and leptin is to signal the regulation of food intake and body weight, which help to control appetite. The study has been confirmed that fructose is the contributing factor of obesity (Charrez et al., 2015). In addition, fructose intake is associated with the increased risk of pancreatic and intestinal cancers (Port, 2012). According to Spaeth, “If you are not trying to avoid GM foods, you are probably eating them every day” (2012).
The results of the phenol-sulfuric acid analysis conducted in this experiment suggest that the data acquired was relatively precise but inaccurate with respect to the given carbohydrate concentrations of the soda and Gatorade samples. Using a standard curve generated from a glucose solution with a known concentration, the carbohydrate concentration of the samples was determined (in terms of glucose) and a low coefficient of variation was calculated. However, a high percent relative error was apparent in the analysis of both samples. This may have been due to the fact that the analysis was conducted assuming glucose was the carbohydrate of interest, while, in fact, a significant portion of the monosaccharides would have existed as fructose (a
Background Information: Yeast fermentation is directly affected by the change in temperature, because the rate of chemical reactions is affected by temperature. If the yeast has been exposed to its optimum temperature (66.667 degrees Celsius) then it will give off the highest carbon dioxide production. As the temperature gets higher, the yeast will produce more carbon dioxide, until at some point carbon dioxide production will decrease, that is when the yeast cells have become denatured due to the increase in temperature. Chemical reactions